/**
 * This file is part of mycollab-web.
 *
 * mycollab-web is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * mycollab-web is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with mycollab-web.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.esofthead.mycollab.vaadin.ui;

import java.util.Iterator;

import org.vaadin.peter.buttongroup.ButtonGroup;

import com.vaadin.ui.Button;
import com.vaadin.ui.Component;

/**
 * 
 * @author MyCollab Ltd.
 * @since 2.0
 * 
 */
public class ToggleButtonGroup extends ButtonGroup {
	private static final long serialVersionUID = 1L;

	private Button selectedBtn;

	public ToggleButtonGroup() {
		super();
		this.addStyleName("toggle-btn-group");
	}

	@Override
	public Button addButton(Button button) {
		super.addButton(button);
		button.addClickListener(new Button.ClickListener() {

			private static final long serialVersionUID = -411946964127842982L;

			@Override
			public void buttonClick(Button.ClickEvent event) {
				if (!event.getButton().equals(selectedBtn)) {
					selectedBtn = event.getButton();
					Iterator<Component> iterator = ToggleButtonGroup.this
							.iterator();
					while (iterator.hasNext()) {
						iterator.next().removeStyleName(UIConstants.BTN_ACTIVE);
					}
					selectedBtn.addStyleName(UIConstants.BTN_ACTIVE);
				}
			}
		});
		return button;
	}

	public void setDefaultButton(Button button) {
		Iterator<Component> iterator = ToggleButtonGroup.this.iterator();
		while (iterator.hasNext()) {
			Button currentBtn = (Button) iterator.next();
			if (currentBtn.equals(button)) {
				selectedBtn = button;
				selectedBtn.addStyleName(UIConstants.BTN_ACTIVE);
			} else {
				currentBtn.removeStyleName(UIConstants.BTN_ACTIVE);
			}
		}
	}

}
